Note 10 - Equity-based Compensation (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	Year Ended		Year Ended		Year Ended
	December 31,		December 31,		December 31,
	2023		2022		2021
Expected term (in years)	3.74 - 10.0		3.74 - 10.0		3.75 - 10.0
Risk-free interest rate	3.61% - 4.72%		1.71% - 4.02%		0.34% - 1.34%
Expected volatility	63.11% - 76.43%		58.63% - 78.52%		58% - 78.94%
Expected dividend yield	0	%	0	%		%

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

						Weighted
				Weighted		average
				average		remaining		Aggregate
	Number of			exercise		contractual		intrinsic value
Options	options			price		term (years)		(in thousands)
Outstanding at December 31, 2022		46,087,641		$	5.90		5.32	$	—
Granted		11,873,258		$	1.60
Exercised		(18,750	)	$	2.12
Forfeited		(886,007	)	$	3.13
Expired		(5,199,136	)	$	6.18
Outstanding at December 31, 2023		51,857,006		$	4.94		5.32	$	63
Vested and expected to vest at December 31, 2023		51,857,006		$	4.94		5.32	$	63
Exercisable at December 31, 2023		33,681,791		$	6.34		3.80	$	63

Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]

						Weighted
				Weighted		average
				average		remaining		Aggregate
	Number of			fair		contractual		intrinsic value
Restricted stock units	options			value		term (years)		(in thousands)
Unvested at December 31, 2022		2,448,743		$	3.07		9.39	$	3,061
Granted		—		$	—
Forfeited		(25,000	)	$	—
Actual vested		(549,680	)	$	—
Unvested and expected to vest at December 31, 2023		1,874,063		$	3.05		8.41	$	2,830